Following this Django by Example tutotrial here:
The tutorial says:
"This changes our table layout and we’ll have to ask Django to reset and recreate tables:
manage.py reset todo; manage.py syncdb"
though, when I run manage.py reset todo, I get the error:
$ python manage.py reset todo
- Unknown command: 'reset'Is this because I am using sqlite3 and not postgresql?
Can somebody tell me what the command is to reset the database?
The command: python manage.py sqlclear todo returns the error:
$ python manage.py sqlclear todo
CommandError: App with label todo could not be found.
Are you sure your INSTALLED_APPS setting is correct?So I added 'todo' to my INSTALLED_APPS in settings.py, and ran python manage.py sqlclear todo again, resulting in this error:
$ python manage.py sqlclear todo
- NameError: name 'admin' is not defined10 Answers
reset has been replaced by flush with Django 1.5, see:
python manage.py help flushIt looks like the 'flush' answer will work for some, but not all cases. I needed not just to flush the values in the database, but to recreate the tables properly. I'm not using migrations yet (early days) so I really needed to drop all the tables.
Two ways I've found to drop all tables, both require something other than core django.
If you're on Heroku, drop all the tables with pg:reset:
heroku pg:reset DATABASE_URL
heroku run python manage.py syncdbIf you can install Django Extensions, it has a way to do a complete reset:
python ./manage.py reset_db --router=defaultSimilar to LisaD's answer, Django Extensions has a great reset_db command that totally drops everything, instead of just truncating the tables like "flush" does.
python ./manage.py reset_db
Merely flushing the tables wasn't fixing a persistent error that occurred when I was deleting objects. Doing a reset_db fixed the problem.
1if you are using Django 2.0 Then
python manage.py flush will work
0If you want to clean the whole database, you can use:python manage.py flushIf you want to clean database table of a Django app, you can use:python manage.py migrate appname zero
1With django 1.11, simply delete all migration files from the migrations folder of each application (all files except __init__.py). Then
- Manually drop database.
- Manually create database.
- Run
python3 manage.py makemigrations. - Run
python3 manage.py migrate.
And voilla, your database has been completely reset.
1For me this solved the problem.
heroku pg:reset DATABASE_URL
heroku run bash
>> Inside heroku bash
cd app_name && rm -rf migrations && cd ..
./manage.py makemigrations app_name
./manage.py migrateJust a follow up to @LisaD's answer.
As of 2016 (Django 1.9), you need to type:
heroku pg:reset DATABASE_URL
heroku run python manage.py makemigrations
heroku run python manage.py migrateThis will give you a fresh new database within Heroku.
python manage.py flushdeleted old db contents,
Don't forget to create new superuser:
python manage.py createsuperuserJust manually delete you database. Ensure you create backup first (in my case db.sqlite3 is my database)
Run this command
manage.py migrate
